KR101661565B1 - A coercion output limiting and monitering apparatus for in-use vehicles - Google Patents

Abstract

The present invention relates to a coercion output limiting and monitoring apparatus for an in-use vehicle, more specifically, which can control an engine output to be low with multiple stages having one or more modes, control in-use vehicle idling or an engine not to be turned on, minimize atmosphere pollution by reducing emission of nitrogen oxide (NOx), and be applied to a mechanical, electronic, and automatic vehicle.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a coercion output limiting and monitoring apparatus for in-

The present invention relates to an electronic diesel engine in which when the urea aqueous solution is insufficient, the shortage is not filled, the quality of the urea aqueous solution is not good, the nitrogen oxides (NOx) Tampering (Level, Quality, Regulation, Tampering), when the control module recognizes that the accelerator pedal of the automobile or the construction machine is underestimated and the CPU is damaged due to ambient noise or a circuit defect, It is possible to control the engine output to a lower level in more than one mode while the voltage value not inputted to the ECU is input to the engine so that the engine is not suddenly generated. In the case of the mechanical and electronic diesel engines, In case of arbitrary modification, after receiving the signal from the control module, In the case of a mechanical and electronic diesel engine, a self-diagnosis module (OBD: on-board diagnostics) is installed and installed in the interior of the vehicle to control the urea aqueous solution tank (NOx) emissions by minimizing air pollution by inducing injection of urea aqueous solution by transmitting the amount of urea aqueous solution and LQRT to the driver through lamp, buzzer operation or voice guidance The present invention relates to a forced output limitation and monitoring device for a vehicle that can be applied to a mechanical, electronic, or auto vehicle using fuel such as an SUV vehicle, a truck, a bus, an excavator, or a forklift.

In the case of conventional diesel automobiles, construction machines, and agricultural machinery, regulations for exhaust gas have been strengthened, and a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF) (CO), hydrocarbons (HC), particulate matte (PM), and the like, and a selective catalytic reduction (SCR : Selective catalystic reduction device.

However, when a selective catalytic reduction (SCR) apparatus is installed, it is inconvenient to check the urea aqueous solution tank (Urea), which is approximately one thousand liters per liter, before inserting the urea aqueous solution tank.

However, there is a problem in that it is difficult to expect a reduction effect of NOx when the urea aqueous solution tank is insufficiently filled with the urea aqueous solution or when the SCR system is not operated normally, .

In addition, it will adversely affect the pollution of air pollution that most countries of the world are interested in.

Therefore, in the case of the LQRT in the electronic diesel engine, when the control module recognizes that the accelerator pedal of the automobile or the construction machine is stepped on, the unintentional voltage value is inputted to the ECU when the CPU damages the peripheral radio noise or a circuit defect, The engine output can be controlled to a lower level in more than one mode while the engine output is lowered. In the case of mechanical and electronic diesel engines, when the driver intentionally detaches or arbitrarily modifies the device, In the case of mechanical and electronic diesel engines, it is possible to provide a self-diagnosis module (OBD: on) for the vehicle interior, -board diagnostics to produce the element of the urea aqueous solution tank (LQRT) to the driver through the lamp, buzzer operation or voice guidance, which is the output limit information monitoring the LQRT. Therefore, it is possible to reduce the emission of nitrogen oxides (NOx) by inducing the injection of urea aqueous solution, There is a desperate need to develop a forced output limiting and monitoring device.

KR 10-2013-0034567 (March 29, 2013)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a nitrogen oxide (NOx) adsorbent for use in an electronic diesel engine, If it is determined that the dosing device is not operating properly (LQRT: Level, Quality, Regulation, Tampering), it is recognized that the accelerator pedal of the vehicle or the construction machine is less depressed, If the CPU is damaged due to electromagnetic noise or a circuit fault, it is possible to control the output of the engine to a lower level in more than one mode while preventing unintentional voltage input to the ECU, And a monitoring device.

It is another object of the present invention to provide a system and a method for controlling a diesel engine in which a signal transmitted from a control module to an engine control motor or an engine is received from a control relay module when a driver intentionally detaches or arbitrarily modifies the device, The vehicle can be controlled so as not to idling the vehicle or starting the vehicle.

It is a further object of the present invention to provide a system and method for generating and managing an on-board diagnosis (OBD) module for a mechanical and an electric diesel engine in a vehicle interior, The present invention provides a forced output limiting and monitoring apparatus for a vehicle that can reduce the emission of nitrogen oxides (NOx) by minimizing air pollution by inducing the injection of urea aqueous solution by transmitting a buzzer operation or voice guidance to a driver.

It is another object of the present invention to provide a forced output limitation and monitoring apparatus for a vehicle, which is applicable to a mechanical vehicle, an electronic vehicle, and an auto vehicle, which use light oil such as SUV vehicles, trucks, buses, excavators, and forklifts as fuel.

In order to achieve the above object, according to a preferred embodiment of the present invention, when the restriction of the forced output is controlled in multiple stages, the SCR device of the vehicle, the urea aqueous solution tank and the urea aqueous solution dosing When the exhaust gas is generated in the vehicle by driving the electronic diesel engine of the vehicle, the urea aqueous solution dosing control unit receives signals related to the quantity and quality of urea aqueous solution in the urea aqueous solution tank, If the level of urea is insufficient when the urea aqueous solution is insufficient after receiving the NOx signal attached to the exhaust pipe and when the quality of the urea aqueous solution is not satisfied or the NOx is out of the reference value, , The LQRT in which the dosing device is not functioning normally (tampering), the CPU of the control module is connected to the urea aqueous solution dosing control unit When a warning lamp or buzzer is activated by receiving information via CAN communication and the forced output limitation is required because the driver does not continuously fill in urea aqueous solution shortage, And the function to make the accelerator pedal input to the ECU as it is when the relay is connected and the LQRT is not connected. A control module; The CPU of the control module limits the voltage of the accelerator pedal to 1 to 2.5 V only by turning on the transistors TR1, TR3 and TR6 at the same time, and the transistor TR1 , TR4 and TR7 are turned on at the same time to control the voltage value to 1 to 2 V and the transistors TR1, TR5 and TR8 are simultaneously turned on at the third stage so that the voltage value is controlled only at 1 to 1.5 V; .

In the present invention, in the case of the mechanical and electronic diesel engine, the amount of the urea aqueous solution of the urea aqueous solution tank and the output limit information monitoring the LQRT are installed in the vehicle interior for transmitting to the driver through the lamp, buzzer operation or voice guidance A self-diagnosis module (OBD); Further comprising:

In the present invention, the urea aqueous solution dosing control unit calculates the injection rate of the urea aqueous solution injected into the urea aqueous solution tank, controls the injection amount of the urea aqueous solution, controls the heating of the urea aqueous solution tank, And has an exhaust temperature, an amount of urea aqueous solution, a quality of urea aqueous solution, and a function of controlling a nitrogen oxide (NOx) sensor.

In the present invention, the forcible output limiting device for a running vehicle according to the present invention is characterized in that the amount of urea urea, the quality of urea, the reference value of nitrogen oxides (NOx), the tampering of the dosing device, And performing the forced output restriction according to the selected one of the output values.

As described above, the forced output limiting and monitoring apparatus for a vehicle according to the present invention has the following effects.

First, the present invention is applicable to an electronic diesel engine in which, when the urea aqueous solution is insufficient, the shortage is not filled, the quality of the urea aqueous solution is not good, the nitrogen oxides (NOx) Tampering (LQRT), when the control module recognizes that the accelerator pedal of the automobile or the construction machine is less depressed and the CPU is damaged due to ambient noise or a circuit defect, the unintentional voltage value is transmitted to the ECU It is possible to control the engine output so that the engine output can be lowered to one stage or more, which is multistage, while preventing sudden acceleration.

In the case of a mechanical and electronic diesel engine, when a driver removes or arbitrarily modifies the apparatus with impure intent, the signal is transmitted from the control module to the engine control motor or the engine. Or shut off to prevent vehicle idling or start-up.

Third, in the case of a mechanical and electronic diesel engine, an on-board diagnostics module (OBD) is built and installed in the vehicle interior to detect the amount of urea aqueous solution in the urea aqueous solution tank and the output limit information By transmitting to the driver through operation or voice guidance, the injection of urea aqueous solution can be induced to reduce the emission of nitrogen oxides (NOx), thereby minimizing air pollution.

Fourth, the present invention is applicable to a mechanical vehicle, an electronic vehicle, and an auto vehicle that use light oil such as SUV vehicles, trucks, buses, excavators, and forklifts as fuel.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram for explaining a configuration of a forced output limiting and monitoring apparatus for a vehicle according to an embodiment of the present invention; FIG.
2 is a diagram for explaining a method for controlling forced output restriction in a multi-stage in a forced output limiting and monitoring apparatus for a vehicle according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of related art or configuration may unnecessarily obscure the gist of the present invention, The description below will be omitted, and the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or the custom of the user, the operator, and the like. It should be understood that the present invention is not limited thereto.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a forced output limiting and monitoring apparatus for a vehicle according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view for explaining a configuration of a forced output limiting and monitoring apparatus for a running vehicle according to an embodiment of the present invention. FIG. 2 is a block diagram of a forced output limiting and monitoring apparatus for a running vehicle according to an embodiment of the present invention, And a method of controlling the forced output restriction in multiple stages.

The forced output limiting and monitoring apparatus for a running vehicle according to the present invention includes a control module 1, a relay 1-1, an external resistor 1-2, a transistor 1-3, a comparator 1-4, an accelerator pedal 2 The buzzer 3, the lamp 5, the urea aqueous solution dosing control unit 6, the urea aqueous solution tank 7, the SCR device 8, the engine 9, the nitrogen oxide (NOx) sensors 1 and 2 ), A self-diagnosis module (OBD) 11, and the like.

1 and 2, in the forced output restriction and monitoring apparatus for a running vehicle according to the present invention, when the restriction of the forced output is controlled in multiple stages, the SCR device 8 of the running vehicle and the urea tank The urea dosing control unit 6 is connected to the urea aqueous solution dosing control unit 6 and the urea dosing control unit 6 is connected to the urea dosing control unit 6. When the urea dosing control unit 6 is driven by the driving of the electronic diesel engine, (NOx) sensors 1 and 2 (10) mounted on the post-treatment exhaust pipe receive signals related to the amount and quality of the urea aqueous solution in the urea aqueous solution tank 7, (LQRT), which is the case when the dosing apparatus is not functioning normally (level), when the urea aqueous component is not (quality) or when the nitrogen oxide (NOx) In the case of The CPU of the air-conditioning module 1 receives information via the CAN communication with the urea aqueous solution dosing control unit 6 to operate the warning lamp 5 or the buzzer 3 so that the driver does not continuously fill in urea aqueous solution deficiency If the forced output limit is required, it is stored in the memory of the CPU without executing the forced output immediately. If the driver turns the key off and key on again, the function to operate the forced output state stored in the memory and the function of LQRT The accelerator pedal 2 is connected to the relay 1-1 so that the input of the accelerator pedal 2 is directly input to the ECU. The CPU of the control module 1 simultaneously turns on TR1, TR3 and TR6 of the transistor 1-3 to set the voltage value of the accelerator pedal 2 to 1 ~ TR1, TR4 and TR7 of the transistor 1-3 are simultaneously turned on to control the voltage value to 1 to 2 V in the second stage and TR1 and TR5 of the transistor 1-3 are controlled in the third stage, And TR8 are turned on at the same time to control the voltage value to 1 to 1.5 V only; (5) for controlling the amount of urea aqueous solution of the urea aqueous solution tank (7) and output limiting information for monitoring the LQRT, a buzzer (3), and a driver A fault diagnosis module (OBD) 11; Respectively.

The function of each technical means constituting the forced output limitation and monitoring device for the vehicle according to the present invention will be described as follows.

As shown in Figs. 1 and 2, when the restriction of the forced output is controlled in multiple stages, the SCR device 8, the urea tank 7 and the urea dosing control unit unit 6 is connected,

The control module 1 controls the amount and quality of the urea aqueous solution in the urea aqueous solution tank 7 in the urea aqueous solution dosing control unit 6 when the exhaust gas is generated in the vehicle by driving the electronic diesel engine of the vehicle (NOx) sensors 1 and 2 (10) mounted on a post-treatment exhaust pipe, and when the urea aqueous solution is insufficient, a shortage level is not filled (level), and when the urea aqueous solution component In the case of LQRT in which the quality or nitrogen oxide (NOx) deviates from the reference value and the dosing apparatus is not in normal operation (tampering), the CPU of the control module 1 controls the urea aqueous solution dosing control unit 6) and CAN communication to operate the warning lamp (5) or the buzzer (3). If the driver does not fill the urea aqueous solution continuously and the forced output limitation is required, the forced output is not performed immediately (1) to activate the forced output state stored in the memory when the motor is stored in the CPU as a memory, and when the driver turns off the key and then key on again, and if not LQRT, the accelerator pedal Is connected so that the input of the accelerator pedal 2 is directly inputted to the ECU.

When the accelerator pedal 2 is limited to one of the forced output restriction modes by the CPU of the control module 1, the CPU simultaneously turns on the TR1, TR3, and TR6 of the transistor 1-3 so that the accelerator pedal 2 ) Is controlled to be 1 to 2.5 V and the voltage value is controlled to be 1 to 2 V by turning on TR1, TR4 and TR7 of the transistor 1-3 simultaneously in the second stage. In the third stage, the transistor 1 3), the forced output can be limited up to the third stage by controlling only the voltage value from 1 to 1.5V by turning on the TR1, TR5 and TR8 at the same time. By this rule, the forced output can be restricted in multiple stages, (2) can be variously changed in consideration of vehicle-specific characteristics.

(OBD) 11 transmits the amount of urea aqueous solution of the urea aqueous solution tank 7 to the driver through the operation of the lamp 5, the buzzer 3 or the voice guidance, which is the output limitation information monitoring the LQRT To be installed in the vehicle interior.

In the case of an electronic diesel engine as described above, the urea aqueous solution dosing control unit 6 calculates the injection rate of the urea aqueous solution (urea) injected into the urea aqueous solution tank 7, controls the injection amount of the urea aqueous solution Controls the heating of the urea aqueous solution liquid line and the urea aqueous solution tank, and has a function of controlling the exhaust temperature, the amount of the urea aqueous solution, the quality of the urea aqueous solution, and the nitrogen oxide (NOx) sensor.

In addition, the forcible output limitation and monitoring device for the vehicle is selected for the amount of urea urea, the quality of urea urea, the standard value of nitrogen oxide (NOx), the tampering of the dosing device, , The output condition described below can be changed in consideration of characteristics and safety of each vehicle.

The control of the amount of urea aqueous solution (Urea) in the urea aqueous solution tank (7) receives a signal from the level sensor mounted in the urea aqueous solution tank (7) If it is less than 10%, the warning lamp lights up and the maximum output of the engine is reduced by 40%. If the urea solution is less than 5%, the warning lamp and buzzer operation or voice guidance and the maximum output of the engine are reduced by 50%.

The control of the Urea quality, the NOx reference value, and the failure of the dosing device in the urea aqueous solution tank 7 is performed by receiving signals from the NOx sensors 1 and 2 (10) mounted on the urea aqueous solution tank 7, The warning lamp lights up when the reference value is above the reference value and the warning lamp lights up and the maximum output of the engine is reduced by 40% if the reference value exceeds 30 minutes. If the reference value exceeds 1 hour, the warning lamp lights up and 60 buzzer operations per minute If the maximum power of the voice guidance and the engine is reduced by 50% and more than the standard value is sustained for more than 4 hours, the alarm lamp lights up and the buzzer operation of 120 times per minute or voice guidance and the maximum output of the engine is reduced by 60%.

Further, the control for the removal or arbitrary modification of the apparatus is an engine idle or start-up impossible.

When the operation of the selective catalytic reduction (SCR) device in the automobile or construction machine equipped with the selective catalytic reduction (SCR) device 9 is observed, when the urea (urea aqueous solution) is injected into the exhaust pipe, Ammonia. Thereafter, ammonia reacts with nitrogen oxides (NOx) to reduce nitrogen oxides (NOx). Here, urea is injected at an exhaust gas temperature of 150 占 폚 or higher, but urea is not injected at -5 占 폚 or lower.

The diesel oxidation catalyst (DOC), which is installed together with the SCR device 8, reduces carbon monoxide and hydrocarbons using a catalytic reaction at a high temperature of 150 to 300 ° C. and reduces particulate matter (PM) And increases the ratio of NO2 in the exhaust gas. Although not shown in the figure, a particulate filter (DPF) installed together with the SCR device 8 collects particulate matter (PM) and accumulates particulate matter (PM) The catalyst is activated at a high temperature of 500 to 600 ° C. by using an additive to recollect and recycle particulate matter (PM).

As described above, the forcible output limitation and monitoring device for a moving vehicle can be applied to a mechanical vehicle, an electronic vehicle, and an auto vehicle, which use light oil such as SUV vehicles, trucks, buses, excavators, and forklifts as fuel. Do.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

1: Control module 1-1: Relay
1-2: external resistor 1-3: transistor
1-4: Comparator 2: Accel pedal
3: Buzzer 5; lamp
6: urea aqueous solution dosing control unit 7: urea aqueous solution tank
8: SCR device 9: engine
10: Nitrogen oxide (NOx) sensor 1,2 11: Self diagnosis module (OBD)

Claims (4)

A forced output limiting and monitoring device for a vehicle,
When the restriction of the forced output is controlled in multiple stages, the SCR device of the vehicle is connected to the urea aqueous solution tank and the urea aqueous solution dosing control unit,
When the exhaust gas is generated in the vehicle by driving the electronic diesel engine of the vehicle, the urea aqueous solution dosing control unit receives signals related to the quantity and quality of urea aqueous solution in the urea aqueous solution tank, NOx) When the NOx signal is received by the sensors 1 and 2, the level is insufficient when the urea aqueous solution is insufficient, and when the quality is not the urea aqueous solution component or when the NOx is out of the reference value In the case of LQRT in which the dosing device is not operating normally, the CPU of the control module receives information via the CAN communication with the urea aqueous solution dosing control unit to operate a warning lamp or buzzer, If a forced output limitation is required because the urea aqueous solution is not filled, the forced memory output is not executed immediately, and the memory is stored in the CPU. The function of activating the forced output state that was stored in memory when the key is turned off and key on again, and the accelerator pedal has a function to connect the relay to the ECU and input the accelerator pedal input directly to the ECU if it is not LQRT A control module;
The CPU of the control module limits the voltage of the accelerator pedal to 1 to 2.5 V only by turning on the transistors TR1, TR3 and TR6 at the same time, and the transistor TR1 , TR4 and TR7 are turned on at the same time to control the voltage value to 1 to 2 V and the transistors TR1, TR5 and TR8 are simultaneously turned on at the third stage so that the voltage value is controlled only at 1 to 1.5 V; And a controller for controlling the output of the forced output for the vehicle. The method according to claim 1,
In the case of the above-described electronic diesel engine, a self-diagnosis diagnostic module (OBD) installed in a vehicle interior to transmit to a driver through a lamp, buzzer operation or voice guidance, which is output limitation information monitoring the amount of urea aqueous solution of urea aqueous solution tank and LQRT; Further comprising: a forced output limiting and monitoring device for the vehicle. The method according to claim 1,
The urea aqueous solution dosing control unit calculates an injection rate of the urea aqueous solution injected into the urea aqueous solution tank, controls the injection amount of the urea aqueous solution, controls the heating of the urea aqueous solution liquid line and the urea aqueous solution tank, Wherein the controller includes a function of controlling the amount of urea aqueous solution, the quality of the urea aqueous solution, and the nitrogen oxide (NOx) sensor. The method according to claim 1,
The forced output limiting and monitoring device for the vehicle is designed to monitor the amount of urea urea, the quality of the urea urea, the reference value of nitrogen oxides (NOx), the tampering of the dosing device, And forcibly limiting the output according to the output signal of the control unit.

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